Home / 28,626.24-42,948-19,303.68

Finding the Fourth Proportional to 28,626.24, 42,948 and 19,303.68

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Solution

The fourth proportional to 28,626.24, 42,948 and 19,303.68 is: 28,961.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,626.24 : 42,948 = 19,303.68 : x
  2. Step 2: Convert to fraction form
    28,626.24/42,948 = 19,303.68/x
  3. Step 3: Cross multiply
    28,626.24x = 42,948 × 19,303.68
  4. Step 4: Simplify right side
    28,626.24x = 829,054,448.64
  5. Step 5: Solve for x
    x = 829,054,448.64/28,626.24
  6. Step 6: Final answer
    x = 28,961.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.